Star Wars Obi Wan Easter Egg - Droid Number

I found this while playing it today.First go to the training area and get to the part where you force push the barrels at the droid.If you listen carefully to the droid that tells you what to do he will say "Now push the barrels at droid 1138".For anyone who does not know 1138 was the first movie George Lucas (Creator of Star Wars) ever made THX 1138.